726 patents currently held
78 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Apr 2029. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
5
Ending by 2030
Apr 2029
Next term end
709
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Jun 2034 · High confidence
Also notable
Ends Jul 2035 · High confidence
Also notable
Ends Jan 2037 · High confidence
Method And System For Achieving Self-Adaptive Surround Sound
US 9,807,536
The most cited patent in this portfolio, cited by 63 later US patents, top 5% of utility patents granted in 2017 in our data. Protection runs to 2034.
Transferring Method, Manufacturing Method, Device and Electronic Apparatus of Micro-LED
US 10,224,308
Cited by 11 later US patents, top 25% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2035.
Sound-Absorbing Material, Sound-Absorbing Particle and Speaker Module Manufacturing Process, Particle and Module
US 10,785,586
A family of 6 related applications built on the 2020 grant. Protection runs to 2037.
Formerly held, still cited
Notable
Ends Jul 2035 · High confidence
Cited by 33 later US patents, top 10% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2035.
now held by Weifang Goertek Microelectronics Co., Ltd.
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 12 fees due Nov 14 to 30, 2026 · next Nov 14
- 11 fees due Dec 6 to 27, 2026 · next Dec 6
- 11 fees due Jan 2 to 25, 2027 · next Jan 2
- 11 fees due Feb 6 to 28, 2027 · next Feb 6
- 5 fees due Mar 5 to 15, 2027 · next Mar 5
- 12 fees due Apr 1 to 29, 2027 · next Apr 1
- 12 fees due May 5 to 28, 2027 · next May 5
- 13 fees due Jun 5 to 29, 2027 · next Jun 5
- 8 fees due Jul 7 to 30, 2027 · next Jul 7
- 14 fees due Aug 4 to 27, 2027 · next Aug 4
- 13 fees due Sep 3 to 30, 2027 · next Sep 3
- 18 fees due Oct 2 to 30, 2027 · next Oct 2
- 8 fees due Nov 5 to 7, 2027 · next Nov 5
Recent changes
- 51 of the patents on this record were granted since Aug 16, 2026
- 4 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 709 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Transferring Method, Manufacturing Method, Device and Electronic Apparatus of Micro-LED | 7 in force | to Dec 2036 |
| Sound-Absorbing Material, Sound-Absorbing Particle and Speaker Module Manufacturing Process, Particle and Module | 3 in force | to Jan 2037 |
| Wristband and Wrist Wearable Device | 2 in force | to Mar 2042 |
| Method and Device for Processing Display Data | 2 in force | to Dec 2037 |
| Active Noise-Reduction Earphones and Noise-Reduction Control Method and System for the Same | 2 in force | to Oct 2035 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,565,463 | Loudspeaker System In force · High confidence | In force | High confidence | |
| US 8,335,333 | Speaker System In force · High confidence | In force | High confidence | |
| US 7,953,240 | Loudspeaker Apparatus In force · High confidence | In force | High confidence | |
| US 9,271,435 | Miniature Microphone, Protection Frame Thereof and Method for Manufacturing the Same In force · Medium confidence | In force | Medium confidence | |
| US 9,108,840 | MEMS Microphone and Method for Packaging the Same In force · High confidence | In force | High confidence | |
| US 8,184,826 | Speaker System In force · High confidence | In force | High confidence | |
| US 8,868,416 | Apparatus And Method For Cancelling Echo In Joint Time Domain And Frequency Domain In force · High confidence | In force | High confidence | |
| US 9,344,804 | Miniature Moving-Coil Speaker In force · High confidence | In force | High confidence | |
| US 9,549,262 | Miniature Electroacoustic Transducer and Assembling Method Thereof In force · High confidence | In force | High confidence | |
| US 9,369,806 | Moving-Coil Electroacoustic Transducer In force · High confidence | In force | High confidence |
Also on record, not counted in the 726: 78 patents in force now held by others · 14 patents ended · 257 applications pending · 58 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.